From 41c5b317036fcb593d14b4dfd12e3318faf3af8a Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Wed, 5 Dec 2007 01:22:43 -0800 Subject: [NETFILTER]: Use nf_register_hooks for multiple registrations Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/ipv4/ipvs/ip_vs_core.c | 104 +++++++++++++++++---------------------------- 1 file changed, 39 insertions(+), 65 deletions(-) (limited to 'net/ipv4/ipvs') diff --git a/net/ipv4/ipvs/ip_vs_core.c b/net/ipv4/ipvs/ip_vs_core.c index 30e8f757152..f5ba606f054 100644 --- a/net/ipv4/ipvs/ip_vs_core.c +++ b/net/ipv4/ipvs/ip_vs_core.c @@ -1025,43 +1025,42 @@ ip_vs_forward_icmp(unsigned int hooknum, struct sk_buff *skb, } -/* After packet filtering, forward packet through VS/DR, VS/TUN, - or VS/NAT(change destination), so that filtering rules can be - applied to IPVS. */ -static struct nf_hook_ops ip_vs_in_ops = { - .hook = ip_vs_in, - .owner = THIS_MODULE, - .pf = PF_INET, - .hooknum = NF_INET_LOCAL_IN, - .priority = 100, -}; - -/* After packet filtering, change source only for VS/NAT */ -static struct nf_hook_ops ip_vs_out_ops = { - .hook = ip_vs_out, - .owner = THIS_MODULE, - .pf = PF_INET, - .hooknum = NF_INET_FORWARD, - .priority = 100, -}; - -/* After packet filtering (but before ip_vs_out_icmp), catch icmp - destined for 0.0.0.0/0, which is for incoming IPVS connections */ -static struct nf_hook_ops ip_vs_forward_icmp_ops = { - .hook = ip_vs_forward_icmp, - .owner = THIS_MODULE, - .pf = PF_INET, - .hooknum = NF_INET_FORWARD, - .priority = 99, -}; - -/* Before the netfilter connection tracking, exit from POST_ROUTING */ -static struct nf_hook_ops ip_vs_post_routing_ops = { - .hook = ip_vs_post_routing, - .owner = THIS_MODULE, - .pf = PF_INET, - .hooknum = NF_INET_POST_ROUTING, - .priority = NF_IP_PRI_NAT_SRC-1, +static struct nf_hook_ops ip_vs_ops[] = { + /* After packet filtering, forward packet through VS/DR, VS/TUN, + * or VS/NAT(change destination), so that filtering rules can be + * applied to IPVS. */ + { + .hook = ip_vs_in, + .owner = THIS_MODULE, + .pf = PF_INET, + .hooknum = NF_INET_LOCAL_IN, + .priority = 100, + }, + /* After packet filtering, change source only for VS/NAT */ + { + .hook = ip_vs_out, + .owner = THIS_MODULE, + .pf = PF_INET, + .hooknum = NF_INET_FORWARD, + .priority = 100, + }, + /* After packet filtering (but before ip_vs_out_icmp), catch icmp + * destined for 0.0.0.0/0, which is for incoming IPVS connections */ + { + .hook = ip_vs_forward_icmp, + .owner = THIS_MODULE, + .pf = PF_INET, + .hooknum = NF_INET_FORWARD, + .priority = 99, + }, + /* Before the netfilter connection tracking, exit from POST_ROUTING */ + { + .hook = ip_vs_post_routing, + .owner = THIS_MODULE, + .pf = PF_INET, + .hooknum = NF_INET_POST_ROUTING, + .priority = NF_IP_PRI_NAT_SRC-1, + }, }; @@ -1092,37 +1091,15 @@ static int __init ip_vs_init(void) goto cleanup_app; } - ret = nf_register_hook(&ip_vs_in_ops); + ret = nf_register_hooks(ip_vs_ops, ARRAY_SIZE(ip_vs_ops)); if (ret < 0) { - IP_VS_ERR("can't register in hook.\n"); + IP_VS_ERR("can't register hooks.\n"); goto cleanup_conn; } - ret = nf_register_hook(&ip_vs_out_ops); - if (ret < 0) { - IP_VS_ERR("can't register out hook.\n"); - goto cleanup_inops; - } - ret = nf_register_hook(&ip_vs_post_routing_ops); - if (ret < 0) { - IP_VS_ERR("can't register post_routing hook.\n"); - goto cleanup_outops; - } - ret = nf_register_hook(&ip_vs_forward_icmp_ops); - if (ret < 0) { - IP_VS_ERR("can't register forward_icmp hook.\n"); - goto cleanup_postroutingops; - } - IP_VS_INFO("ipvs loaded.\n"); return ret; - cleanup_postroutingops: - nf_unregister_hook(&ip_vs_post_routing_ops); - cleanup_outops: - nf_unregister_hook(&ip_vs_out_ops); - cleanup_inops: - nf_unregister_hook(&ip_vs_in_ops); cleanup_conn: ip_vs_conn_cleanup(); cleanup_app: @@ -1136,10 +1113,7 @@ static int __init ip_vs_init(void) static void __exit ip_vs_cleanup(void) { - nf_unregister_hook(&ip_vs_forward_icmp_ops); - nf_unregister_hook(&ip_vs_post_routing_ops); - nf_unregister_hook(&ip_vs_out_ops); - nf_unregister_hook(&ip_vs_in_ops); + nf_unregister_hooks(ip_vs_ops, ARRAY_SIZE(ip_vs_ops)); ip_vs_conn_cleanup(); ip_vs_app_cleanup(); ip_vs_protocol_cleanup(); -- cgit v1.2.3